Climate in Karatsu (Saga), Japan

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Karatsu, Japan

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Monthly hours of sunshine

The average monthly total hours of sunshine over the year

Average monthly hours of sunshine in Karatsu, Japan

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* Data from: Fukuoka, Japan (44 KM, 27 Miles).

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Average monthly rainfall, snow, precipitation in Karatsu, Japan

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Karatsu, Japan

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Karatsu, Japan

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* Data from: Fukuoka, Japan (44 KM, 27 Miles).

Weather Forecasts for Karatsu

Sat   Mar 02
6°C | -1°C
N 18 km/h
partly cloudy and no rain

partly cloudy and no rain

Sun   Mar 03
12°C | 0°C
W 14 km/h
0.3 mm
broken clouds and small chance of slight rain

broken clouds and small chance of slight rain

Mon   Mar 04
14°C | 3°C
N 7 km/h
broken clouds and no rain

broken clouds and no rain

The best time of year to visit Karatsu in Japan

During the months of May, June and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is summer in Karatsu?
    The hottest season / summer takes place in June, July, August and September.
  • Which months have the greatest rainfall in Karatsu?
    Most rainfall (rainy season) is seen in June, July, August and September.
  • Which is the warmest month in Karatsu?
    August has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in Karatsu?
    The coldest month is January with an average maximum temperature of 11°C.
  • Which is the wettest month in Karatsu?
    June tops the wettest month list with 306 mm of rainfall.
  • Which is the driest month in Karatsu?
    January is the driest month with 82 mm of precipitation.
  • Which is the sunniest month in Karatsu?
    May is the sunniest month with an average of 205 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.